link to AFSC home page
Mobile users can use the Site Map to access the principal pages

link to AFSC home page link to NMFS home page link to NOAA home page
Stellar Sea Lion Bull on Haul Out

The Alaska Ecosystems Program conducts research on Steller sea lions and northern fur seals. Research projects are designed to assess the status of these species under the ESA and MMPA and to improve knowledge of their ecology and behavior.  In addition, research on these species is directed at gaining a better understanding of the role that these species play in the Bering Sea and Gulf of Alaska ecosystems in order to provide advice for management of human activites that may affect the conservation and recovery of these species. 

Program Leader: Tom Gelatt

Recent Reports, Publications, and Posters

Recent Cruises & Projects


Dr. Tom Gelatt explains how NOAA Fisheries scientists are working to
protect and study threatened Steller sea lions.

Quarterly Reports Publications
  • BECKMEN, K. B., M. J. KEOGH, K. A. BUREK-HUNTINGTON, G. M. YLITALO, B. S. FADELY, and K. W. PITCHER. 2016. Organochlorine contaminant concentrations in multiple tissues of free-ranging Steller sea lions (Eumetopias jubatus) in Alaska. Sci. Tot. Environ. 542:441-452. http://dx.doi.org/10.1016/j.scitotenv.2015.10.119  Online.
     
  • SCHMIDT, J. H., D. S. JOHNSON, M. S. LINDBERG, and L. G. ADAMS. 2015. Estimating demographic parameters using a combination of known-fate and open n-mixture models. Ecology 96:2583-2589. https://doi.org/10.1890/15-0385.1.   Online.
     
  • OVSYANIKOVA, E., I. FEDUTIN, O. BELONOVICH, A. BURDIN, V. BURKANOV, E. DOLGOVA, O. FILATOVA, S. FOMIN, E. HOYT, E. MAMAEV, G. RICHARD, O. SAVENKO, K. SEKIGUCHI, O. SHPAK, M. SIDORENKO, and O. TITOVA. 2015. Opportunistic sightings of the endangered North Pacific right whales (Eubalaena japonica) in Russian waters in 20032014. Mar. Mammal Sci. 31:1559-1567. https://doi.org/10.1111/mms.12243.  Online.
     
  • CONN, P. B., D. S. JOHNSON, and P. L. BOVENG. 2015. On extrapolating past the range of observed data when making statistical predictions in ecology. PLoS ONE 10:e0141416. DOI: 10.1371/journal. pone.0141416 
     
  • SINCLAIR, E. H., W. A. WALKER, and J. R. THOMASON. 2015. Body size regression formulae, proximate composition and energy density of eastern Bering Sea mesopelagic fish and squid. PLoS One 10(8):e0132289. DOI:10.1371/journal.pone.0132289. (.pdf, 379 KB).  Online.
     
  • REA, L. D., A. M. CHRIST, A. B. HAYDEN, V. K. STEGALL, S. D. FARLEY, C. A. STRICKER, J. A. E. MELLISH, J. M. MANISCALCO, J. N. WAITE, V. N. BURKANOV, and K. W. PITCHER. 2015. Age-specific vibrissae growth rates: a tool for determining the timing of ecologically important events in Steller sea lions. Mar. Mammal Sci. 31(3):1213-1233. 
     
  • LANDER, M. E., T. LINDSTROM, M. RUTISHAUSE, A. FRANZHEIM, and M. HOLLAND. 2015. Development and field testing a satellite-linked fluorometer for marine vertebrates. Animal Biotelemetry (2015) 3:40. 11 p. DOI: 10.1186/s40317-015-0070-7. (.pdf, 7.66 MB, open access).  Online.
     
  • ZEPPELIN, T. K., D. S. JOHNSON, C. E. KUHN, S. J. IVERSON, and R. R. REAM. 2015. Stable isotope models predict foraging habitat of northern fur seals (Callorhinus ursinus) in Alaska. PLoS One 10(6):e0127615. DOI: 10.1371/journal.pone.0127615. (Open Access).  Online.
     
  • Additional recent Alaska Ecosystems Program publications


Posters

  • Cooperative Multi-Species Surveys in the Aleutian Islands
    By:  STEVEN J. BARBEAUX, DAVE FRASER, LOWELL FRITZ, ELIZABETH LOGERWELL
    Conference:  ICES Symposium on Marine Ecosystem Acoustics, Nantes, France, May 2015
    (2015 poster, .pdf, 16.14 MB)   Online.

     
  • Stable Isotope Model Predicts Foraging Habitat of Northern Fur Seals (Callorhinus ursinus) in Alaska
    By:  T. K. ZEPPELIN, D. S. JOHNSON, C. E. KUHN, S. J. IVERSON, R. R. REAM
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2015
    (2015 poster, .pdf, 6.13 MB)   Online.

     
  • Linking Northern Fur Seal Behavior with Prey Distributions: the Impact of Temporal Mismatch Between Predator and Prey Surveys
    By:  CAREY KUHN
    Conference:  Bio-logging Science Symposium (5th International), Strasbourg, France, Sept 2014
    (2014 poster, .pdf, 10.5 MB)   Online.

     
  • Development and Field Testing a Satellite-linked Fluorometer for Marine Mammals: Shedding Light on the Unknown
    By:  MICHELLE LANDER, MELINDA HOLLAND, TODD LINDSTROM, ALBERT FRANZHEIM, MATTHEW RUTISHAUSER, ROGER HILL
    Conference:  Bio-logging Science Symposium (5th International), Strasbourg, France, Sept 2014
    (2014 poster, .pdf, 2.33 MB)   Online.

     
  • Development and Field Testing a Satellite-linked Fluorometer for Marine Mammals: Shedding Light on the Unknown (Phase II)
    By:  MICHELLE LANDER, MELINDA HOLLAND, TODD LINDSTROM, ALBERT FRANZHEIM, MATTHEW RUTISHAUSER, ROGER HILL
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 60.6 MB (** Note large file size **))   Online.

     
  • Re-examining Habitat Segregation and Foraging Effort of Northern Fur Seals After 15 Years of Decline
    By:  CAREY KUHN, JEREMY STERLING, ROLF REAM
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 3.76 MB)   Online.

     
  • Steller Sea Lion Diet and Population Trends in the Aleutian Islands
    By:  LOWELL FRITZ, DOMINIC TOLLIT, EDWARD LAMAN, KRISTI MILLER, ANGELA SCHULZE, JAMES THOMASON, WILLIAM WALKER, TONYA ZEPPELIN, THOMAS GELATT
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, n-011, n-042, n-017)   Online.

     
  • Steller Sea Lion Decline at Medny Island Rookery, Russia, in Summer 2013
    By:  VLADIMIR BURKANOV, ANNA KIRILLOVA, EVGENY MAMAEV, SERGEY RYAZANOV, THOMAS GELATT
    Conference:  Alaska Marine Science Symposium, Anchorage, AK, Jan 2014
    (2014 poster, .pdf, 2.84 MB)   Online.

     
  • Additional recent Alaska Ecosystems Program poster presentations



            | Home | Site Map | Contact Us | Webmaster | Privacy | Disclaimer | Accessibility | Print |           doc logo